Leutze, Emmanuel Gottlieb (American, 1816-1868) American artists

The picture has something of this: people, group, military, soldier, man, weapon, war, wear, battle, vehicle, skirmish, many, group together, flame, uniform, army.
Perhaps it’s a painting of a group of people in a boat on a body of water with an american flag on top of the boat and a man holding a flag.